My buddies and fellow SharePoint MVP's Todd Klindt
and Shane Young
have a new book
out on SharePoint Administration. I didn't even know - nobody ever tells us devs anything. If admin is your thing then go get it - these guys know their stuff.
(Psst - If you see Shane anywhere be sure to tell him how much you like Site Definitions
. It's fun watching him sputter and turn red! Just kidding, Shanester - you know I love ya)
UPDATE: Be sure to read the comments for a special offer from Shane. Hurry up - only the first in line gets the freebie!